tofsee | 003b168c37c2021abf8ab1633c3c633f460cc992bd9d4119adc7f68268b5e281

Analysis

max time kernel
144s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/02/2025, 19:55 UTC

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General

Target

2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe
Size

14.6MB
MD5

1a2bdbcde1923aadc9e8ee75d33e78ba
SHA1

a6888eb7a394e8ffcf897aca153c6b10a7a98d85
SHA256

003b168c37c2021abf8ab1633c3c633f460cc992bd9d4119adc7f68268b5e281
SHA512

1e8d740dc793a4913a252247683c1239fa2400ec1ab7ecc3aa1f4fa36eeaab151460acec08971321b3deff5cf837e3bb1ab3194f3f98eaa7474660e8e468e73a
SSDEEP

3072:gLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:9OMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\ekqvxhj = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2572	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ekqvxhj\ImagePath = "C:\\Windows\\SysWOW64\\ekqvxhj\\usbclhws.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1764	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	usbclhws.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 1764	2868	usbclhws.exe	41

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2768	sc.exe
2256	sc.exe
2596	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	usbclhws.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2652	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	30
PID 3036 wrote to memory of 2652	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	30
PID 3036 wrote to memory of 2652	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	30
PID 3036 wrote to memory of 2652	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	30
PID 3036 wrote to memory of 2664	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	32
PID 3036 wrote to memory of 2664	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	32
PID 3036 wrote to memory of 2664	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	32
PID 3036 wrote to memory of 2664	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	32
PID 3036 wrote to memory of 2768	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	34
PID 3036 wrote to memory of 2768	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	34
PID 3036 wrote to memory of 2768	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	34
PID 3036 wrote to memory of 2768	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	34
PID 3036 wrote to memory of 2256	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	36
PID 3036 wrote to memory of 2256	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	36
PID 3036 wrote to memory of 2256	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	36
PID 3036 wrote to memory of 2256	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	36
PID 3036 wrote to memory of 2596	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	38
PID 3036 wrote to memory of 2596	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	38
PID 3036 wrote to memory of 2596	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	38
PID 3036 wrote to memory of 2596	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	38
PID 2868 wrote to memory of 1764	2868	usbclhws.exe	41
PID 2868 wrote to memory of 1764	2868	usbclhws.exe	41
PID 2868 wrote to memory of 1764	2868	usbclhws.exe	41
PID 2868 wrote to memory of 1764	2868	usbclhws.exe	41
PID 2868 wrote to memory of 1764	2868	usbclhws.exe	41
PID 2868 wrote to memory of 1764	2868	usbclhws.exe	41
PID 3036 wrote to memory of 2572	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	42
PID 3036 wrote to memory of 2572	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	42
PID 3036 wrote to memory of 2572	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	42
PID 3036 wrote to memory of 2572	3036	2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ekqvxhj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\usbclhws.exe" C:\Windows\SysWOW64\ekqvxhj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ekqvxhj binPath= "C:\Windows\SysWOW64\ekqvxhj\usbclhws.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ekqvxhj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ekqvxhj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2596
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2572

C:\Windows\SysWOW64\ekqvxhj\usbclhws.exe
C:\Windows\SysWOW64\ekqvxhj\usbclhws.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_1a2bdbcde1923aadc9e8ee75d33e78ba_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1764

Network

DNS

microsoft.com

svchost.exe

Remote address:

8.8.8.8:53

Request

microsoft.com

IN A

Response

microsoft.com

IN A

20.70.246.20

microsoft.com

IN A

20.236.44.162

microsoft.com

IN A

20.112.250.133

microsoft.com

IN A

20.76.201.171

microsoft.com

IN A

20.231.239.246
DNS

microsoft.com

svchost.exe

Remote address:

8.8.8.8:53

Request

microsoft.com

IN MX

Response

microsoft.com

IN MX

microsoft-commail protectionoutlook�
DNS

microsoft-com.mail.protection.outlook.com

svchost.exe

Remote address:

8.8.8.8:53

Request

microsoft-com.mail.protection.outlook.com

IN A

Response

microsoft-com.mail.protection.outlook.com

IN A

52.101.42.0

microsoft-com.mail.protection.outlook.com

IN A

52.101.40.26

microsoft-com.mail.protection.outlook.com

IN A

52.101.11.0

microsoft-com.mail.protection.outlook.com

IN A

52.101.8.49
DNS

yahoo.com

svchost.exe

Remote address:

8.8.8.8:53

Request

yahoo.com

IN MX

Response

yahoo.com

IN MX

mta5am0yahoodnsnet

yahoo.com

IN MX

mta7�.

yahoo.com

IN MX

mta6�.
DNS

mta5.am0.yahoodns.net

svchost.exe

Remote address:

8.8.8.8:53

Request

mta5.am0.yahoodns.net

IN A

Response

mta5.am0.yahoodns.net

IN A

67.195.228.110

mta5.am0.yahoodns.net

IN A

67.195.204.79

mta5.am0.yahoodns.net

IN A

67.195.228.106

mta5.am0.yahoodns.net

IN A

67.195.228.94

mta5.am0.yahoodns.net

IN A

98.136.96.75

mta5.am0.yahoodns.net

IN A

98.136.96.91

mta5.am0.yahoodns.net

IN A

98.136.96.74

mta5.am0.yahoodns.net

IN A

67.195.204.77
DNS

google.com

svchost.exe

Remote address:

8.8.8.8:53

Request

google.com

IN MX

Response

google.com

IN MX

smtp�
DNS

smtp.google.com

svchost.exe

Remote address:

8.8.8.8:53

Request

smtp.google.com

IN A

Response

smtp.google.com

IN A

142.251.5.27

smtp.google.com

IN A

142.251.5.26

smtp.google.com

IN A

142.250.110.26

smtp.google.com

IN A

142.250.110.27

smtp.google.com

IN A

66.102.1.26
DNS

mail.ru

svchost.exe

Remote address:

8.8.8.8:53

Request

mail.ru

IN MX

Response

mail.ru

IN MX

mxs�
DNS

mxs.mail.ru

svchost.exe

Remote address:

8.8.8.8:53

Request

mxs.mail.ru

IN A

Response

mxs.mail.ru

IN A

94.100.180.31

mxs.mail.ru

IN A

217.69.139.150

20.70.246.20:80

microsoft.com

svchost.exe

190 B
92 B
4
2
52.101.42.0:25

microsoft-com.mail.protection.outlook.com

svchost.exe

152 B
3
43.231.4.7:443

svchost.exe

152 B
3
67.195.228.110:25

mta5.am0.yahoodns.net

svchost.exe

152 B
3
142.251.5.27:25

smtp.google.com

svchost.exe

152 B
3
43.231.4.7:443

svchost.exe

152 B
3
94.100.180.31:25

mxs.mail.ru

svchost.exe

152 B
3
43.231.4.7:443

svchost.exe

152 B
3

8.8.8.8:53

microsoft.com

dns

svchost.exe

59 B
139 B
1
1

DNS Request

microsoft.com

DNS Response

20.70.246.20

20.236.44.162

20.112.250.133

20.76.201.171

20.231.239.246
8.8.8.8:53

microsoft.com

dns

svchost.exe

59 B
113 B
1
1

DNS Request

microsoft.com
8.8.8.8:53

microsoft-com.mail.protection.outlook.com

dns

svchost.exe

87 B
151 B
1
1

DNS Request

microsoft-com.mail.protection.outlook.com

DNS Response

52.101.42.0

52.101.40.26

52.101.11.0

52.101.8.49
8.8.8.8:53

yahoo.com

dns

svchost.exe

55 B
134 B
1
1

DNS Request

yahoo.com
8.8.8.8:53

mta5.am0.yahoodns.net

dns

svchost.exe

67 B
195 B
1
1

DNS Request

mta5.am0.yahoodns.net

DNS Response

67.195.228.110

67.195.204.79

67.195.228.106

67.195.228.94

98.136.96.75

98.136.96.91

98.136.96.74

67.195.204.77
8.8.8.8:53

google.com

dns

svchost.exe

56 B
77 B
1
1

DNS Request

google.com
8.8.8.8:53

smtp.google.com

dns

svchost.exe

61 B
141 B
1
1

DNS Request

smtp.google.com

DNS Response

142.251.5.27

142.251.5.26

142.250.110.26

142.250.110.27

66.102.1.26
8.8.8.8:53

mail.ru

dns

svchost.exe

53 B
73 B
1
1

DNS Request

mail.ru
8.8.8.8:53

mxs.mail.ru

dns

svchost.exe

57 B
89 B
1
1

DNS Request

mxs.mail.ru

DNS Response

94.100.180.31

217.69.139.150

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\usbclhws.exe

Filesize
13.9MB

MD5
21f325b95a5c01d9a92589d04f813587

SHA1
93b9632a0cc8489a181fbe83f5afeac8d8f0ee73

SHA256
df491bd137a32a20b37da5d8d45a8ae4af53d33b782501278726ec64899798b1

SHA512
260ec6a36cefc361e1fb0ec9b09fd21214d0b94aba00545798ba3cc366bacf02b6253bd07eb0c5faaffe94dbfdc7c9958ebd185b4cc20e9e44fd7540eb01041b

Download Submit
memory/1764-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1764-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1764-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1764-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1764-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3036-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3036-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3036-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3036-14-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3036-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3036-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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